[Chronic diseases and multimorbidiy in patients with toxic oil syndrome: a comparative study with general population.] / Enfermedades crónicas y multimorbilidad en pacientes con síndrome de aceite tóxico: estudio comparativo con población general.

OBJECTIVE: Toxic oil syndrome is a multisystemic disease that arose in 1981 due to the ingestion of contaminated rapeseed oil. Previous studies have found a higher prevalence of cardiovascular risk factors in these patients. The aim of this study was to analyze the differences in the prevalence of chronic diseases among a population affected by Toxic oil syndrome compared with a reference population in the Community of Madrid. METHODS: Cross-sectional observational study of patients with a registry diagnosed with Toxic oil syndrome in the primary care medical record and a reference sample without Toxic oil syndrome matched by age group and sex. Sociodemographic variables, cardiovascular risk factors, cardiovascular and cerebrovascular disease, anxiety, depression, asthma, chronic obstructive pulmonary disease, and low back pain, and multimorbidity (≥2 chronic diseases) were assesed. Descriptive and multivariate analysis was performed to study the association between morbidity and Toxic oil syndrome. RESULTS: 3,527 patients (1,394 Toxic oil syndrome) were included with a mean age of 66 (SD14) years, 71% women. Patients with a diagnosis of SAT were more likely to present multimorbidity (OR 1.36; 95%CI: 1.10-1.45), diabetes (OR 1.55; 95%CI: 1.29-1.86), complicated hypertension (OR 1.77; IC95%: 1.31-2.39), heart attack (OR 2.23; 95%CI: 1.47-3.38), depression (OR 1.39; 95%CI: 1.17-1.66) and asthma (OR 1.56; 95%CI: 1.23-1.97). The prevalence of anxiety was lower in TOS (OR 0.35; 95% CI: 0.18-0.69) as well as low back pain (OR 0.77; 95%CI: 0.65-0.91). CONCLUSIONS: Patients with toxic oil syndrome have a higher frequency of chronic diseases and mutimorbidity compared to the general population of the same sex and age.

OBJETIVO: El síndrome del aceite tóxico es una enfermedad multisistémica que surgió en 1981 debido a la ingesta de aceite de colza contaminado. Estudios previos han encontrado en estos pacientes una mayor prevalencia de factores de riesgo cardiovascular. El objetivo de este estudio fue analizar las posibles diferencias en prevalencia de morbilidad crónica entre una población afectada por síndrome de aceite tóxico comparada con una población de referencia en la Comunidad de Madrid. METODOS: Estudio observacional transversal de pacientes diagnosticados de síndrome del aceite tóxico en la historia clínica de atención primaria y una muestra de referencia sin síndrome del aceite tóxico apareados por grupo de edad y sexo. Se recogieron variables sociodemográficas, factores de riesgo cardiovascular, enfermedad cardiovascular y cerebrovascular, ansiedad, depresión, asma, enfermedad pulmonar obstructiva crónica, lumbalgia y multimorbilidad (≥2 enfermedades crónicas). Se realizó análisis descriptivo y multivariante para estudiar la asociación entre morbilidad y síndrome del aceite tóxico. RESULTADOS: Se incluyeron 3.527 pacientes (1.394 SAT) con una edad media de 66 (14) años, el 71% mujeres. Los pacientes con diagnóstico de síndrome del aceite tóxico tuvieron mayor probabilidad de presentar multimorbilidad (OR 1,36; IC95%: 1,10-1,45), diabetes (OR 1,55; IC95%: 1,29-1,86), hipertensión arterial complicada (OR 1,77; IC95%: 1,31-2,39), infarto (OR 2,23; IC95%: 1,47-3,38), depresión (OR 1,39; IC95%: 1,17-1,66) y asma (OR 1,56; IC95%: 1,23-1,97). La prevalencia de ansiedad fue menor (OR 0,35; IC95%: 0,18-0,69) así como de lumbalgia (OR 0,77; IC95%: 0,65-0,91). CONCLUSIONES: Los pacientes con síndrome de aceite tóxico presentan una mayor frecuencia de enfermedades crónicas y mutimorbilidad comparado con población general del mismo sexo y edad.

Ginger and turmeric lipid-solubles attenuate heated oil-induced hepatic inflammation via the downregulation of NF-kB in rats.

PURPOSE: Reusing deep-fried vegetable oils multiple times is a common practice to save costs, and their chronic consumption may cause hepatic dysfunction. In this investigation, we assessed the modulatory effects of ginger and turmeric lipid-solubles that may migrate to oils during heating on the hepatic inflammatory response in rats. METHODS: Male Wistar rats were fed with; 1) control {native canola (N-CNO) or native sunflower (N-SFO)} oil, 2) heated (heated canola {(H-CNO) or heated sunflower (H-SFO)} oil, and 3) heated oil with ginger or turmeric {heated canola with ginger (H-CNO + GI) or heated canola oil with turmeric (H-CNO + TU), heated sunflower oil with ginger (H-SFO + GI) or heated sunflower oil with turmeric (H-SFO + TU)} for 120 days. Hepatic inflammatory response comprising eicosanoids, cytokines, and NF-kB were assessed. RESULTS: Compared to respective controls, feeding heated oils significantly (p < 0.05); 1) increased eicosanoids (PGE2, LTB4, and LTC4) and cytokines (TNF-α, MCP-1, IL-1ß, and IL-6), 2) increased nuclear translocation of NF-kB in the liver, and 3) increased the hepatic expression of 5-LOX, COX-2, BLT-1, and EP-4. However, feeding oils heated with ginger or turmeric positively countered the changes induced by consumption of heated oils. CONCLUSIONS: Consumption of repeatedly heated oil may cause hepatic dysfunction by inducing inflammatory stress through NF-kB upregulation. Lipid-solubles from ginger and turmeric that may migrate to oil during heating prevent the hepatic inflammatory response triggered by heated oils in rats.

Dietary soybean oil, canola oil and partially-hydrogenated soybean oil affect testicular tissue and steroid hormone levels differently in the miniature pig.

The present study was conducted to examine the influence of dietary canola oil (CAN) and partially-hydrogenated soybean oil (HSO) compared to soybean oil (SOY, control) on the morphology and function of testes using miniature pigs as the test subject. Male miniature pigs were fed a diet containing 10%SOY, 9%CAN+1%SOY, or 9%HSO+1%SOY for 18 months. The scheduled autopsies revealed no abnormalities in histopathological examination of the major organs, except the testes. Atrophy of the seminiferous tubules and hyperplasia in the Leydig cells were found in the SOY and CAN groups. DNA microarray analysis indicated downregulation in the CAN and the HSO groups of genes encoding for gonadotropins in the pituitary gland and of enzymes and proteins involved in steroid hormone metabolism in the testes, compared to the SOY group. Plasma levels of sex hormones in the CAN and HSO groups tended to be higher and testosterone and dihydrotestosteorne in the HSO group were significantly higher than in the SOY group. These results demonstrate that testes are morphologically and functionally affected by the dietary oils, while the plasma steroid hormone levels do not necessarily reflect the gene expression, probably owing to feedback regulation via the gonadal hormones in the hypothalamus-pituitary-gonadal axis.

Mutagenicity emission factors of canola oil and waste vegetable oil biodiesel: Comparison to soy biodiesel.

Canola (or rapeseed) oil and waste vegetable oil (WVO) are used commonly to make biodiesel fuels composed completely from these oils (B100) or as blends with petroleum diesel (B0). However, no studies have reported the mutagenic potencies of the particulate matter with diameter ≤2.5 µm (PM2.5) or the mutagenicity emission factors, such as revertants/MJthermal (rev/MJth) for these biodiesel emissions. Using strains TA98 and TA100 with the Salmonella (Ames) mutagenicity assay, we determined these metrics for organic extracts of PM2.5 of emissions from biodiesel containing 5% soy oil (soy B5); 5, 20, 50, and 100% canola (canola B5, B20, B50, B100), and 100% waste vegetable oil (WVO B100). The mutagenic potencies (rev/mg PM2.5) of the canola B100 and WVO B100 emissions were generally greater than those of B0, whereas the mutagenicity emission factors (rev/MJth, rev/kg fuel, and rev/m3) were less, reflecting the lower PM emissions of the biodiesels relative to B0. Nearly all the rev/mg PM2.5 and rev/MJth values were greater in TA98 with S9 than without S9, indicating a relatively greater role for polycyclic aromatic hydrocarbons, which require S9, than nitroarenes, which do not. In TA100 -S9, the rev/mg PM2.5 and rev/MJth for the biodiesels were generally ≥ to those of B0, indicating that most of these biodiesels produced more direct-acting, base-substitution mutagenic activity than did B0. For B100 biodiesels and petroleum diesel, the rev/MJth in TA98 + S9 ranked: petroleum diesel > canola > WVO > soy. The diesel emissions generally had rev/MJth values orders of magnitude higher than those of large utility-scale combustors (natural gas, coal, oil, or wood) but orders of magnitude lower than those of inefficient open burning (e.g., residential wood fireplaces). These comparative data of the potential health effects of a variety of biodiesel fuels will help inform the life-cycle assessment and use of biodiesel fuels.

Safety assessment of EPA+DHA canola oil by fatty acid profile comparison to various edible oils and fat-containing foods and a 28-day repeated dose toxicity study in rats.

The omega-3 long-chain polyunsaturated fatty acids (LC-PUFAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are recognized for their health-promoting qualities. Marine fish and fish oil currently provide the main sources of EPA and DHA for human consumption. An alternative plant-based source of EPA and DHA is provided by EPA + DHA canola event LBFLFK (LBFLFK). A comparative analysis and a 28-day toxicity study assessed the safety of LBFLFK refined, bleached, and deodorized (RBD) oil. Thirty-one different commercially-obtained fat and oil samples were tested, and principal component analysis showed that the overall fatty acid profile of LBFLFK RBD oil was most similar to Mortierella alpina oil and salmon flesh. Samples with the fewest differences in the presence or absence of individual fatty acids compared to LBFLFK RBD oil were menhaden oil and some other fish oils. In a 28-day toxicity study, LBFLFK RBD oil was administered by oral gavage to male and female Wistar rats. No signs of toxicity were evident and no adverse effects were noted in clinical observations, clinical pathology, or histopathology. Overall, these studies support the safety of LBFLFK RBD oil as a source of EPA and DHA for human consumption.

Safety assessment of medium- and long-chain triacylglycerols containing 30% (w/w) medium-chain fatty acids in mice and rats.

A novel medium- and long-chain triacylglycerols (MLCT), with 30% (w/w) medium-chain fatty acids (MCFA) was evaluated for its safety as a dietary fat in mice and rats. The subacute oral toxicity study showed that the maximum tolerated dose exceeded 54.33 g/kg body weight (kg bw)/day. In the 90-day feeding study, no dose-related adverse effects were observed in rats administered diets formulated with different levels of MLCT (2.0, 4.0, and 8.0 g/kg bw/day) as compared to the rapeseed oil control diet. Further safety assessment in pregnant rats did not reveal any significant difference relative to the control at a treatment level up to 8.0 g MLCT/kg bw/day. The results from this study indicated the safe use of MLCT with high contents of MCFA in food products for improving human health.